Color sensing for a reader device and the like
a reader device and color sensor technology, applied in the field of color sensing for a reader device and the like, can solve the problems of increasing the price of a reader that integrates the price of such a color sensor is relatively high, and the effect of fluorescent illumination
Inactive Publication Date: 2010-02-25
IN DOT
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Benefits of technology
[0020]More optionally, the plurality of LEDs encircle the photoelectric sensor, the device further comprising a tubular separator for preventing the single photoelectric sensor from intercepting the plurality of monochromatic light beams.
[0028]Optionally, the single photoelectric sensor is configured for reducing the effect of a fluorescent illumination on the portion, the measuring being performed according to the reduction.
Problems solved by technology
Though color sensors exist, the integration of them into such reader devices is relatively expensive.
Though such a color sensor provides a relatively stabile and efficient color sensor, it comprises a number of complex components.
As the price of such a color sensor is relatively high, the price of a reader that integrates such a color sensor increases.
Moreover, though the color sensor reduces the positional sensitivity of the instrument with respect to the area of interest, it still ignores some of the effect of positioning of the LED-based color sensor in relation to the area of interest on the interceptions of the sensing system.
Method used
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[0064]The present embodiments comprise a reader device and a method for identifying a label having a color property and presenting matching content in response. The reader device uses a small and inexpensive color-sensing unit. The color-sensing unit comprises a light source unit for emitting a plurality of monochromatic lights having different wavelength bands toward the label and a photoelectric sensor for intercepting at least a portion of the reflection of the lights from the label and measuring the color property of the label according to the portion. The photoelectric sensor provides a color property output, which is based on the intercepted reflection, to the reader device that uses the color property for identifying and presenting the matching content.
[0065]The present embodiments further comprise a color-sensing unit for measuring a color property output in an area of interest, which is preferably used in the aforementioned reader device. The area of interest preferably enc...
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A reader device for identifying a color property in an area of interest and presenting content in response. The reader device comprises a light source unit for emitting a number of monochromatic lights having different wavelength bands toward the area of interest and a single photoelectric sensor for intercepting a reflection of the monochromatic lights from the area of interest, thereby providing the color property output and presenting the content according to the color property.
Description
FIELD AND BACKGROUND OF THE INVENTION[0001]The present invention relates to a reader device and a method for identifying a color property in an area of interest and presenting content in response and, more particularly, but not exclusively to a reader device and a method for identifying a color property of color labels and marks using a photoelectric sensor in an area of interest and presenting content in response.[0002]In the industrial world, objects are attached with labels for automatic identification. A unique label preferably has one or more unique characteristics such as a unique pattern, a unique shape, a unique color and a unique size. It is a common practice to identify objects by information that is encrypted in the label that is attached to the object. Several methods and systems for identifying objects such as products and documents are known. An example for such a system is the widely known barcode system that is used for automating data collection where hand recording...
Claims
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Login to View More IPC IPC(8): G06K7/12G01J3/46
CPCG01N21/251G01N21/255G01N21/274G01N21/474G01J3/0272G01N2201/0627G01N2201/0636G01N2201/0644G01J3/501G01N2021/4759
InventorCOHEN, MOSHERAICHMAN, YOSSEFBEN-TOLILA, ITSICK
OwnerIN DOT